I had just my car in for the brakes and service. As part of the service, they have updated the software of the car. I haven't used the car that much since I got it back but I for now I can tell that the Autopilot was affected negatively through this update.
First thing I noticed was that the intervals the autopilot is asking to touch the steering wheel have become significantly shorter. Right after I bought the car, I took it for a several hundert miles "break in" trip and used the autopilot for most of the time. The system worked at that time flawlessly and I thought the intervals I was asked to touch the steering wheel were quite appropriate. Now I have the feeling they almost dont want you to take the hands off anymore. Maybe it is too subjective but would be interested to hear if others had similar experience.
The other, more dangerous and not acceptable point I noticed was that the autopilot did not decelerate at two occasions while I was approaching stopped cars at a red light. The car even accelerated and short before I arrived at the other car (as I was about to brake myself), the auto brake alarm came on but I was anyway about to brake. That is pretty crazy and not acceptable. They should better test their software before they release those. Wondering if anyone else had similar experiences.